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In: Statistics and Probability

Belief in UFOs A survey found that 20% of people believe that they have seen a...

Belief in UFOs A survey found that 20% of people believe that they have seen a UFO. Choose a sample of

11 people at random. Find the probability of the following. Round intermediate calculations and final answers to at least three decimal places.

a) At least 2 people believe that they have seen a UFO

b) 2 or 3 people believe they have seen an UFO

c) Exactly 3 people have seen an UFO

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